WO2011118285A1 - 建設機械 - Google Patents

建設機械 Download PDF

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Publication number
WO2011118285A1
WO2011118285A1 PCT/JP2011/053133 JP2011053133W WO2011118285A1 WO 2011118285 A1 WO2011118285 A1 WO 2011118285A1 JP 2011053133 W JP2011053133 W JP 2011053133W WO 2011118285 A1 WO2011118285 A1 WO 2011118285A1
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WO
WIPO (PCT)
Prior art keywords
plate
driver
footrest
seat
floor member
Prior art date
Application number
PCT/JP2011/053133
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
浩 多辺田
石井　元
木村　庄吾
田中　友幸
Original Assignee
日立建機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日立建機株式会社 filed Critical 日立建機株式会社
Priority to EP11759093.5A priority Critical patent/EP2554753B1/en
Priority to US13/496,979 priority patent/US20130011232A1/en
Priority to CN201180004582.5A priority patent/CN102667012B/zh
Priority to KR1020127010411A priority patent/KR101764773B1/ko
Priority to JP2012506881A priority patent/JP5313398B2/ja
Publication of WO2011118285A1 publication Critical patent/WO2011118285A1/ja

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D33/00—Superstructures for load-carrying vehicles
    • B62D33/06—Drivers' cabs
    • B62D33/0617—Drivers' cabs for tractors or off-the-road vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/02—Side panels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D33/00—Superstructures for load-carrying vehicles
    • B62D33/06—Drivers' cabs
    • B62D33/063—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other
    • B62D33/067—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other tiltable
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/32—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
    • E02F3/325—Backhoes of the miniature type
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0833—Improving access, e.g. for maintenance, steps for improving driver's access, handrails
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/16—Cabins, platforms, or the like, for drivers
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/16—Cabins, platforms, or the like, for drivers
    • E02F9/163—Structures to protect drivers, e.g. cabins, doors for cabins; Falling object protection structure [FOPS]; Roll over protection structure [ROPS]
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/16—Cabins, platforms, or the like, for drivers
    • E02F9/166—Cabins, platforms, or the like, for drivers movable, tiltable or pivoting, e.g. movable seats, dampening arrangements of cabins

Definitions

  • the present invention relates to a construction machine such as a hydraulic shovel provided with a cab box on a floor member, for example.
  • a hydraulic shovel as a construction machine is provided with a self-propelled lower traveling body, an upper revolving body pivotally mounted on the lower traveling body, and elevating and lowering motion on the front side of the upper revolving body. It is roughly configured by the working device.
  • the upper swing body is a swing frame forming a support structure, and a floor member provided on the swing frame and having a driver seat attachment portion on the rear side for attaching the driver's seat and a footrest portion on the front side for the operator to ride And a cab box provided above and around the floor member to form a cab on the floor member. Further, on the outer peripheral side of the cab box, a door for opening and closing the entrance is provided at a position corresponding to the footrest portion.
  • a space is provided on the floor member, and an indoor unit of an air conditioner that supplies conditioned air to the driver's cab is disposed in this space.
  • This floor member has a double floor board structure by arranging the upper floor board so as to cover the indoor unit above the lower floor board on which the indoor unit is mounted.
  • a step portion lowered by one step is provided on the entrance side of the upper floor plate by bending obliquely downward.
  • a foot is placed on the step portion (Patent Document 1: Japanese Patent Application Laid-Open No. 2005-226307).
  • the step portion formed by bending the entrance side of the upper floor plate obliquely is only low to the height of the lower floor plate. Can not do it. Therefore, there is a problem that the height dimension from the lower traveling body to the step portion is large and it is difficult to get on or off.
  • the number of parts is large, and it takes time for the assembling operation.
  • the present invention has been made in view of the problems of the prior art described above, and the object of the present invention is to make it easy to get on the foot and easily get on and off the cab by making the door side of the floor member sufficiently low. Providing construction equipment.
  • the construction machine comprises a self-propelled lower traveling unit, an upper revolving unit pivotally mounted on the lower traveling unit, and a working device provided so as to be able to ascend and descend on the upper revolving unit.
  • the upper swing body is a swing frame forming a support structure, and a floor member provided on the swing frame and having a driver seat attachment portion on the rear side for attaching a driver's seat and a footrest portion on the front side for a footrest And a cab box provided above and around the floor member to form a cab on the floor member, the cab box being positioned at a position corresponding to the footrest portion of the floor member.
  • a door is provided to enter and exit the cab.
  • the footrest portion of the floor member which becomes the driver's cabin is a flat driver's seat front plate which is provided on the front side of the driver's seat and on which an operator rests; And a flat footrest plate which is extended from the lower part of the downdraft toward the door of the cab box when the operator gets on and off the cab. It is to have done.
  • the position of the footrest plate can be disposed at the low position largely lowered from the driver's seat front plate. Accordingly, since the height dimension from the lower traveling body to the footrest plate of the footrest can be reduced, the operator can easily put the foot on the footrest board when getting into the cab from the lower traveling body. be able to. In addition, when getting off the driver's cab, it is possible to easily get off from the footrest plate onto the lower traveling body.
  • the footrest plate can be provided at a sufficiently low position in the footrest portion constituting the floor member, the getting on / off operation to the driver's cab can be easily performed. Further, since the footrest plate is provided on the door side of the footrest portion, the driver's seat front plate on which the operator seated on the driver's seat rests can be formed large (widely). On the other hand, since the footrest plate is provided in the driver's cab surrounded by the cab box, for example, snow, dust and the like can be prevented from being accumulated, and the door of the cab box can be smoothly opened and closed. Furthermore, since the upright plate between the driver's seat front plate and the footrest plate is substantially vertical, the driver's seat front plate and footrest plate can be formed large by effectively utilizing the limited space.
  • the door-side portion of the driver's seat attachment portion of the floor member is a console attachment portion for attaching a console device having an operation lever for operating the work device, and the footrest plate of the footrest portion is This configuration is provided on the front side of the console attachment portion.
  • the front side of the console device provided on the door side portion of the driver's seat attachment portion is out of the range where the operator seated on the driver's seat places his / her foot. Therefore, by providing a foot support plate on the front side of the console device, the foot support plate can be easily placed on the foot when getting on and off, and can be disposed at a position not disturbing the operation.
  • the footrest plate on the front side of the console attachment portion the left and right width dimensions of the footrest plate can be made approximately the same as the width dimension of the console attachment portion. Thereby, the area of the footrest plate can be formed wide, and the foot can be reliably hung.
  • a lever for operation and a lever / pedal attachment portion for attaching a pedal are provided on the front side of the footrest portion of the floor member, and an end of the lever / pedal attachment portion on the door side is A notched portion obliquely cut out toward the door from a position corresponding to a front corner of the driver's seat front plate is formed, and an end portion of the notched portion is formed on the front side portion of the falling plate
  • a bent plate portion is formed to be obliquely bent along the length, and an enlarged portion corresponding to the notch portion is formed on the front side of the footrest plate.
  • the end on the door side of the lever / pedal attachment portion is notched obliquely toward the door to provide a notch, and the front portion of the falling plate is along the end of the notch.
  • the bent plate portion By providing the bent plate portion, the enlarged portion can be provided on the front side of the footrest plate. Therefore, it is possible to widely form the footrest plate in the front and back directions by the amount provided with the enlarged portion while avoiding the pedal positioned on the front side of the footrest plate. As a result, even at a narrow portion on the front side of the driver's seat attachment portion, the operator can reliably hook the footrest plate.
  • the present invention forms a floor back accommodation space on the back side of the footrest portion of the floor member using the height dimension of the falling board provided between the driver's seat front plate and the footrest plate.
  • An indoor unit of an air conditioner for adjusting the cold air or the warm air of the sucked air is attached to the floor rear accommodation space.
  • the indoor unit of the air conditioner can be attached to the back side of the floor member, being located in the floor back accommodation space.
  • FIG. 5 is an external perspective view showing the upper structure of FIG. 4 with the door opened.
  • FIG. 6 is a cross-sectional view of the floor member, the driver's seat, various control levers, a pedal, a cab box, etc.
  • FIG. 1 It is an appearance perspective view showing a floor member, a driver's seat, various control levers, a pedal, etc. It is an appearance perspective view showing a floor member alone from the front side. It is an appearance perspective view showing a floor member alone from the rear side.
  • reference numeral 1 denotes a cab-specification hydraulic excavator as a construction machine applied to the present embodiment, and the hydraulic excavator 1 is a small hydraulic excavator called a mini-excavator suitable for work at a narrow work site .
  • the hydraulic shovel 1 is provided on the front side and the rear side in the front and rear directions of the upper revolving superstructure 3 and the upper revolving superstructure 3 mounted so as to be able to pivot on the lower traveling superstructure 2. It comprises the working device 4 which carries out the excavating work of the earth and sand.
  • the undercarriage 2 has left and right track side frames 2A, as shown in FIG. 3, and the track side frame 2A includes crawler belts 2D via idle wheels 2B and drive wheels 2C at front and rear positions. Is wound.
  • the upper swing body 3 has a width dimension in the left and right directions substantially equal to the vehicle width of the lower traveling body 2, and is an imaginary of a turning radius R centered on the turning center O It is formed in a substantially circular shape as viewed from above so as to fit within the circle C.
  • the hydraulic shovel 1 rears such that the rear surface of the counterweight 8 described later substantially falls within the vehicle width of the lower traveling body 2. It is configured as a small turning hydraulic shovel.
  • the turning radius R described above is defined by the distance from the turning center O to the rear surface of the counterweight 8, and the virtual circle C described above is a locus of the rear surface of the counterweight 8 when the upper swing body 3 turns. There is. Further, the virtual circle C is set to fit within the vehicle width in the left and right directions of the lower traveling body 2, and even if the virtual circle C protrudes from the vehicle width, the amount of protrusion is a slight dimension .
  • the upper swing body 3 is composed of a swing frame 5, a counterweight 8, a floor member 9, a driver's seat 16, a cab box 21 and the like, which will be described later.
  • Reference numeral 5 denotes a swing frame which constitutes a support structure of the upper swing body 3.
  • the pivot frame 5 is a flat plate-like bottom plate 5A extending in the front and back directions and the left and right middle portions separated from the top surface side of the bottom plate 5A in the left and right directions.
  • a left vertical plate 5B, a right vertical plate 5C, and a support bracket 5D provided at the front end of each vertical plate 5B, 5C for supporting the work device 4; It is roughly configured by a front beam 5E which is provided so as to extend in the left and right directions and to which a front side portion of the floor member 9 described later is attached.
  • Reference numeral 6 denotes an engine (shown by a dotted line in FIG. 1) mounted on the rear side of the swing frame 5, and the engine 6 rotationally drives a hydraulic pump.
  • 7 is a control valve device (see FIG. 3) mounted on the left front side of the swing frame 5, and the control valve device 7 is below the footrest 11 (indoor unit 25) of the floor member 9 described later That is, it is located on the left side of the left vertical plate 5B of the turning frame 5 and mounted on the bottom plate 5A.
  • the control valve device 7 and the piping connected to the control valve device 7 are positioned immediately below the indoor unit 25 when the floor member 9 is tilted down, between the indoor unit 25 and A clearance is provided to prevent interference with each other for reasons to be described later.
  • a counterweight 8 is provided at the rear of the swing frame 5, and the counterweight 8 balances the weight with the working device 4.
  • the counterweight 8 is curved in an arc shape so as to cover the engine 6 from the rear side.
  • the counterweight 8 is provided with a floor attachment portion 8A for attaching the attachment plate portion 10D of the driver's seat attachment portion 10 constituting the floor member 9 described later to the swing frame 5 side. There is.
  • Reference numeral 9 denotes a floor member provided on the swing frame 5 near the left side.
  • the front side position of the floor member 9 is supported so as to be able to tilt on the front beam 5E of the turning frame 5, and the rear side position is supported on the upper part of the counterweight 8 via the floor mounting portion 8A.
  • the floor member 9 can be tilted up (state of FIG. 3) and tilted down (state of FIG. 1) with the driver's seat 16, the cab box 21 and the like as a fulcrum at the front position.
  • the floor member 9 is roughly configured by a driver seat attachment portion 10, a footrest portion 11, and a lever / pedal attachment portion 15 described later.
  • Reference numeral 10 denotes a driver's seat attachment portion which is positioned in the rear of the floor member 9 and formed in a step-like shape, and the driver's seat attachment portion 10 is for attaching a driver's seat 16 described later.
  • the driver's seat attachment portion 10 is a substantially flat driving in which a front plate portion 10A extending upward from the rear of the footrest portion 11 and a driver seat 16 extending from the upper portion of the front plate portion 10A to the rear side A seat mounting plate portion 10B, a back plate portion 10C extending upward from the rear of the driver's seat mounting plate portion 10B, and a mounting plate portion 10D extending rearward from the upper portion of the back plate portion 10C. It is configured.
  • the mounting plate portion 10D is supported by the floor mounting portion 8A on the counterweight 8 in an anti-vibration state when the floor member 9 is tilted down.
  • a left side portion on the door 21F side of the cab box 21 described later is a console attachment portion 10E for attaching a console device 17 on the left side described later.
  • the front side of the console attachment portion 10E is located on the left side of the front plate portion 10A and is a front surface portion 10E1.
  • the left and right width dimensions of the front face portion 10E1 are set to a large dimension W (see FIG. 8) so that an operation mode switching valve (not shown) or the like can be disposed therein.
  • Reference numeral 11 denotes a footrest provided on the front side of the driver's seat attachment 10 in order for the operator seated on the driver's seat 16 to place his / her foot.
  • the footrest 11 is provided at a position corresponding to the door 21F of the cab box 21.
  • the footrest portion 11 has functions of both a portion on which the operator puts his / her foot at the time of work and a portion on which the operator places his / her foot at the time of getting on and off.
  • the footrest portion 11 is formed in a step shape by a driver seat front plate 12, a falling plate 13 and a footrest plate 14 which will be described later.
  • Reference numeral 12 denotes a driver's seat front plate provided on the front side of the driver's seat 16 in the footrest 11.
  • the driver's seat front plate 12 has a rectangular shape provided in a wide range from the right end portion of the driver's seat attachment portion 10 to the console attachment portion 10E, that is, in the left and right width ranges of the driver's seat mounting plate portion 10B. It is formed as a flat plate. Further, in the driver's seat front plate 12, the left end 12A on the door 21F side substantially coincides with the right end of the console mounting portion 10E.
  • the width in the left and right directions of the driver's seat front plate 12 is wider than the seat width of the driver's seat 16 as shown in FIG. 6, so it is sufficient for the operator to carry It is wide.
  • the left side of the driver's seat front plate 12 reaches the approximate center position of the spare operation pedal 19, the left foot for operating the spare operation pedal 19 can be placed on the driver's seat front plate 12.
  • a reference numeral 13 denotes a falling plate provided to vertically fall from the left end 12A of the front plate 12 of the driver's seat.
  • the falling plate 13 includes a straight plate 13A extending in the front and rear directions along the left end 12A, and a notch 15D of a lever / pedal mounting portion 15 described later from the front end of the straight plate 13A. It is comprised by the bending board part 13B bent diagonally along the edge part. The bent plate portion 13B is bent at an angle corresponding to the notch portion 15D of the lever / pedal mounting portion 15. Further, by forming the falling plate 13 to vertically fall, both the driver's seat front plate 12 and the footrest plate 14 can be formed large without waste.
  • the reference numeral 14 denotes a flat footboard provided extending from the lower part of the falling board 13 toward the door 21F side (left side).
  • the footrest plate 14 is for hooking when the operator gets on and off the cab 22.
  • the footrest plate 14 is at a position greatly lowered from the driver's seat front plate 12, specifically, at a height equivalent to the lower end of the lever / pedal mounting portion 15. It is arranged.
  • the footrest plate 14 can be provided at a low position largely lowered from the driver's seat front plate 12 without being restrained by the height position of the driver's seat front plate 12 of the footrest 11.
  • the height dimension from the top of the crawler belt 2D of the undercarriage 2 to the footrest plate 14 can be reduced.
  • the footrest plate 14 can prevent deposition of, for example, snow, dust and the like by being provided in the cab 22.
  • an enlarged portion 14A which is expanded toward the door 21F at the same position as the notch 15D of the lever / pedal mounting portion 15 is formed at the front position of the footrest plate 14. That is, by providing the enlarged portion 14A, the footrest plate 14 has a trapezoidal shape extending to the front side. Thus, by setting the front side position of the footrest plate 14 as the enlarged portion 14A, the footrest plate 14 can be formed wide to the front side while avoiding the spare operation pedal 19 by the enlarged portion 14A.
  • the footrest plate 14 is a place out of the range where the operator seated on the driver's seat 16 puts his foot, specifically, the front side of the console attachment portion 10E (the console device 17 on the left side) of the driver's seat attachment portion 10. It is provided at the position. That is, the footrest plate 14 disposed on the front side of the console mounting portion 10E is provided with the same width dimension as the width dimension W of the front surface portion 10E1 of the console mounting portion 10E (however, the width dimension on the enlarged portion 14A side) Is slightly narrower). As a result, since the footrest plate 14 can be formed wide in the direction of getting on and off, it is easy to put the foot on getting on and off, and can be disposed at a position that does not get in the way at work.
  • the driver's seat front plate 12, the falling plate 13 and the footrest plate 14 are formed integrally by, for example, bending a rectangular plate material into a crank shape, or a plurality of plate materials are fixed by welding means. In this way, an integrated method is adopted.
  • a lever / pedal attachment portion 15 is provided on the front side of the footrest 11.
  • the lever / pedal attachment portion 15 extends leftward and rightward along the front end of the driver's seat front plate 12.
  • the lever / pedal mounting portion 15 has a central opening 15A located at the center in the left and right directions for mounting a control lever pedal 18 for travel described later, and a left opening located on the left side of the central opening 15A. 15B and a right opening 15C located to the right of the central opening 15A.
  • the left and right openings 15B and 15C are provided with pedals 19 and 20 described later for swinging the work device 4 and driving an optional hydraulic device (not shown).
  • a notch that is obliquely cut toward the door 21F from a position corresponding to the front corner 12A1 of the left end 12A of the driver's seat front plate 12 15D is provided.
  • the left end of the lever / pedal attachment portion 15 as the notch 15D, the footrest plate 14 can be formed wide to the front while avoiding the spare operation pedal 19.
  • Reference numeral 16 denotes a driver's seat provided on the floor member 9.
  • the driver's seat 16 is mounted at the center position of the driver's seat mounting plate portion 10B constituting the driver's seat mounting portion 10 in the left and right directions.
  • the driver's seat 16 is for the operator to be seated when operating the hydraulic shovel 1.
  • Reference numeral 17 denotes console devices disposed on both the left and right sides of the driver's seat 16.
  • the console devices 17 each have an operation lever 17B for working at a front position of a console 17A provided with various switches, indicators and the like. There is.
  • the operation lever 17B operates the work device 4 and the like by performing a tilting operation in the forward and backward directions or in the left and right directions.
  • the console device 17 on the left side is attached to the console attachment portion 10E of the driver's seat attachment portion 10 constituting the floor member 9, and the console device 17 on the right side is the driver seat mounting plate portion 10B of the driver's seat attachment portion 10. Mounted on the right side of the
  • Reference numeral 18 denotes a control lever / pedal for traveling provided on a lever / pedal mounting portion 15 of the floor member 9 on the front side of the driver's seat 16.
  • the operating lever / pedal 18 is located at the central opening 15A of the lever / pedal mounting portion 15 and is provided so as to be capable of tilting operation in the forward and backward directions.
  • 19 is a spare operation pedal provided at the left opening 15B of the lever / pedal attachment portion 15 located on the left side of the operation lever / pedal 18, and the operation pedal 19 is additionally provided, for example, a breaker or the like. It operates when driving hydraulic equipment (not shown).
  • Reference numeral 20 denotes a swing operation pedal provided on the right opening 15C of the lever / pedal attachment portion 15 located on the right side of the operation lever / pedal 18, and the operation pedal 20 moves the work device 4 in the left and right directions. It swings (swings).
  • Reference numeral 21 denotes a cab box provided on the floor member 9 (see FIGS. 4 to 6).
  • the cab box 21 covers the periphery and the upper part of the floor member 9 described later.
  • the cab box 21 is formed in a box shape by the front surface 21A, the rear surface 21B, the left side surface 21C, the right side surface 21D, and the top surface 21E, and the lower end is attached to the periphery of the floor member 9.
  • the cab box 21 forms a driver's cab 22 on the floor member 9 as a living space for the operator.
  • a door 21F for entering and leaving the cab 22 at a position corresponding to the footrest 11 of the floor member 9 is provided so as to be able to open and close.
  • the door 21F opens and closes the entrance 23 provided on the left side of the footrest 11.
  • the lower end 21F1 of the door 21F is at the same height as the footrest 14.
  • the door 21F when the door 21F is opened, it can be taken into the cab 22 through the entrance 23 and can be dismounted. At this time, the operator can easily get on and off by putting a foot on the footrest plate 14 of the footrest 11 provided at a low position.
  • Reference numeral 24 denotes a floor back accommodation space provided on the back side of the footrest 11 (see FIG. 3).
  • the floor back accommodation space 24 is between the driver seat front plate 12 and the footrest plate 14 of the footrest 11. It is formed on the back side of the driver's seat front plate 12 using the height dimension H of the falling plate 13 provided.
  • the floor back accommodation space 24 has left and right width dimensions that are large enough to accommodate the indoor unit 25 of the air conditioner described later.
  • the indoor unit 25 is on the lower side. Can be reduced in size. Thereby, even when the floor member 9 is tilted down, a clearance is provided between the indoor unit 25 provided in the floor rear accommodation space 24 and the control valve device 7 and piping located below the indoor unit 25. And prevent interference with each other.
  • 25 is an indoor unit of an air conditioner provided on the back side of the floor member 9, and the indoor unit 25 is configured by an evaporator, a heater, a blower fan (all not shown), and the like.
  • the indoor unit 25 is located in the floor rear accommodation space 24 and attached to the back surface of the driver's seat front plate 12 of the footrest 11. Then, the indoor unit 25 adjusts the suctioned air to cool air or warm air, and supplies the conditioned air into the operation room 22 through an air conditioning duct 26 (see FIG. 7) provided on the right side of the floor member 9 or the like. It is.
  • the hydraulic shovel 1 according to the present embodiment has the above-described configuration, and the operation thereof will be described next.
  • the operator when getting into the cab 22, the operator opens the door 21F of the cab box 21, rides on the crawler belt 2D of the lower traveling body 2, and forms the footrest plate 14 formed on the footrest 11 of the floor member 9 from this crawler belt 2D. I'm going to At this time, since the footrest plate 14 is provided at a lower position than the driver's seat front plate 12, the operator can easily hook the footrest plate 14 from the crawler belt 2D. It is possible to get into the cab 22. The operator who gets into the cab 22 gets on the driver's seat front plate 12 from the footrest plate 14 and sits on the driver's seat 16.
  • the operator sitting on the driver's seat 16 travels the lower traveling body 2 by operating the operation lever and pedal 18 for traveling.
  • the operation levers 17B of the left and right console devices 17 it is possible to operate the working device 4 and the like to perform the excavation work of soil and the like.
  • the operator when getting down from the driver's cab 22, the operator can easily extend the foot on the crawler belt 2D of the lower traveling body 2 by putting a foot on the footrest plate 14, and get down to the ground through the crawler belt 2D. Can.
  • the footrest portion 11 of the floor member 9 provided in the cab 22 surrounded by the cab box 21 is provided facing the front side of the driver's seat 16 and allows the operator to foot A flat driver's seat front plate 12, a falling plate 13 which descends from a left end 12A of the driver's seat front plate 12 facing the door 21F, and a lower portion of the falling plate 13 extends leftward toward the door 21F.
  • the operator gets on and off the driver's cab 22, it comprises a flat footrest plate 14 on which a foot is placed.
  • the footrest plate 14 can be provided at a position lower than the driver's seat front plate 12 at a position where the user places a foot when getting on and off the cab 22.
  • the footrest plate 14 can be disposed at a low position largely lowered from the driver's seat front plate 12 by extending the falling plate 13 downward.
  • the height dimension from the top of the crawler belt 2D of the undercarriage 2 to the footrest plate 14 can be reduced. Therefore, when the operator gets into the cab 22 from above the crawler belt 2D, the operator sets his foot on the footrest plate 14 It can be hung easily. Further, when getting off the driver's cab 22, it can be easily dropped from the footrest plate 14 onto the crawler belt 2D.
  • the footrest plate 14 can be provided at a sufficiently low position on the footrest portion 11 of the floor member 9, the getting on / off operation to the cab 22 can be easily performed. Further, since the footrest plate 14 is provided on the door 21F side of the cab box 21 in the footrest portion 11, a space for an operator seated on the driver's seat 16 to place a foot, that is, a driving with a large area The front plate 12 can be secured. On the other hand, since the footrest plate 14 is provided in the cab 22 surrounded by the cab box 21, for example, snow, dust, etc. can be prevented from volumeing, and the door 21F of the cab box 21 can be opened and closed smoothly. it can.
  • the driver's seat front plate 12, the falling plate 13, and the footrest plate 14 can be integrally formed by, for example, bending a plate material or welding a plate-like part.
  • the driver's seat front plate 12, the falling plate 13, the footrest plate 14 and the like can all be handled as a single part, and the configuration can be simplified to improve the assembly workability and the like.
  • the falling plate 13 connecting the driver's seat front plate 12 and the footrest plate 14 is lowered almost vertically, the limited space in the driver's cab 22 can be effectively utilized, Both the plate 12 and the footrest plate 14 can be formed large.
  • the footrest plate 14 of the footrest portion 11 is provided on the front side of the console attachment portion 10E of the driver's seat attachment portion 10.
  • the front side of the left console device 17 is out of the range where the operator sitting on the driver's seat 16 puts the foot, so the footrest plate 14 is a position where the foot is easy to get on and off and does not get in the way during operation. Can be placed.
  • the footrest plate 14 can be formed with a width dimension similar to the width dimension W of the front surface portion 10E1 of the console mounting portion 10E.
  • the footrest plate 14 can be formed wide in the getting on and off direction, the operator can reliably hook the footrest plate 14 with a wide area.
  • a lever / pedal attachment portion 15 for attaching the operation lever / pedal 18 is provided, and at the left end of the lever / pedal attachment portion 15, driver's seat A notch 15D is formed obliquely from the position corresponding to the front corner 12A1 of the left end 12A of the front plate 12 toward the door 21F.
  • a bent plate portion 13B bent along the end of the notch portion 15D is formed at the front side portion of the falling plate 13. Accordingly, the enlarged portion 14A can be formed on the front side portion of the footrest plate 14 by the notch portion 15D and the bending plate portion 13B.
  • the footrest plate 14 can be formed to have a large area by the size of the enlarged portion 14A, and the operator can reliably hook the footrest plate 14.
  • the enlarged portion 14A can be provided at a position avoiding the spare operation pedal 19 disposed on the left side of the lever / pedal mounting portion 15.
  • the height space H of the falling plate 13 provided between the driver's seat front plate 12 and the footrest plate 14 is utilized to provide a floor back accommodation space. 24 can be formed. Since the floor back accommodation space 24 utilizes the height dimension H of the falling plate 13, that is, the difference in height between the driver's seat front plate 12 and the footrest plate 14, the dimension which protrudes downward from the footrest plate 14
  • the indoor unit 25 of the air conditioner can be accommodated in a state in which Thus, it is possible to secure a clearance for arranging piping or maintenance between equipment such as the control valve device 7 mounted on the swing frame 5 side and the indoor unit 25.
  • the floor member 9 is configured to be tiltable up and down with the front position as a fulcrum point with respect to the swing frame 5 as an example.
  • the present invention is not limited to this, and can also be applied to, for example, a hydraulic shovel of a type in which a floor member is fixed to a swing frame.
  • the hydraulic shovel 1 of a cab specification provided with the crawler type lower traveling body 2 has been described as an example.
  • the present invention is not limited to this, and may be applied to, for example, a hydraulic shovel or the like provided with a wheel type lower traveling body.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Body Structure For Vehicles (AREA)
  • Component Parts Of Construction Machinery (AREA)
PCT/JP2011/053133 2010-03-24 2011-02-15 建設機械 WO2011118285A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP11759093.5A EP2554753B1 (en) 2010-03-24 2011-02-15 Small-sized hydraulic excavator
US13/496,979 US20130011232A1 (en) 2010-03-24 2011-02-15 Construction machine
CN201180004582.5A CN102667012B (zh) 2010-03-24 2011-02-15 工程机械
KR1020127010411A KR101764773B1 (ko) 2010-03-24 2011-02-15 건설기계
JP2012506881A JP5313398B2 (ja) 2010-03-24 2011-02-15 建設機械

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010-067791 2010-03-24
JP2010067791 2010-03-24

Publications (1)

Publication Number Publication Date
WO2011118285A1 true WO2011118285A1 (ja) 2011-09-29

Family

ID=44672858

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/053133 WO2011118285A1 (ja) 2010-03-24 2011-02-15 建設機械

Country Status (6)

Country Link
US (1) US20130011232A1 (ko)
EP (1) EP2554753B1 (ko)
JP (1) JP5313398B2 (ko)
KR (1) KR101764773B1 (ko)
CN (1) CN102667012B (ko)
WO (1) WO2011118285A1 (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5706110B2 (ja) * 2010-07-29 2015-04-22 プレス工業株式会社 建設機械のキャブフレーム構造
US10375901B2 (en) 2014-12-09 2019-08-13 Mtd Products Inc Blower/vacuum
JP6450221B2 (ja) * 2015-03-05 2019-01-09 住友ゴム工業株式会社 空気入りタイヤ
SE539198C2 (en) * 2015-09-09 2017-05-09 BAE Systems Hägglunds AB Vehicle frame for a tracked amphibious vehicle
JP7473305B2 (ja) * 2019-07-10 2024-04-23 株式会社小松製作所 キャブおよび作業車両

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JP2005067533A (ja) * 2003-08-27 2005-03-17 Shin Caterpillar Mitsubishi Ltd ホイール式建設機械
JP2005226307A (ja) 2004-02-12 2005-08-25 Hitachi Constr Mach Co Ltd 建設機械

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JP2003027525A (ja) * 2001-07-23 2003-01-29 Komatsu Ltd 建設車両の運転室支持装置
KR100646269B1 (ko) * 2003-03-04 2006-11-23 히다치 겡키 가부시키 가이샤 건설 기계
JP2005213935A (ja) * 2004-01-30 2005-08-11 Hitachi Constr Mach Co Ltd 建設機械及び建設機械の運転室
JP4209787B2 (ja) * 2004-02-26 2009-01-14 日立建機株式会社 建設機械
US7347488B2 (en) * 2005-08-31 2008-03-25 Caterpillar Inc. Vehicle cab including centrally-located “A post”
JP4945122B2 (ja) * 2005-12-01 2012-06-06 株式会社小松製作所 建設機械用キャブ
JP4880757B2 (ja) * 2007-08-13 2012-02-22 日立建機株式会社 建設機械

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JP2005067533A (ja) * 2003-08-27 2005-03-17 Shin Caterpillar Mitsubishi Ltd ホイール式建設機械
JP2005226307A (ja) 2004-02-12 2005-08-25 Hitachi Constr Mach Co Ltd 建設機械

Non-Patent Citations (1)

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Title
See also references of EP2554753A4 *

Also Published As

Publication number Publication date
EP2554753A4 (en) 2015-07-08
EP2554753A1 (en) 2013-02-06
CN102667012B (zh) 2015-04-01
KR20130038180A (ko) 2013-04-17
EP2554753B1 (en) 2016-12-07
US20130011232A1 (en) 2013-01-10
JPWO2011118285A1 (ja) 2013-07-04
KR101764773B1 (ko) 2017-08-03
JP5313398B2 (ja) 2013-10-09
CN102667012A (zh) 2012-09-12

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